CN208276007U - Expanding die - Google Patents
Expanding die Download PDFInfo
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- CN208276007U CN208276007U CN201820074522.XU CN201820074522U CN208276007U CN 208276007 U CN208276007 U CN 208276007U CN 201820074522 U CN201820074522 U CN 201820074522U CN 208276007 U CN208276007 U CN 208276007U
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Abstract
The utility model discloses a kind of expanding dies, belong to forging and forming technical field.The expanding die includes lower die and lower die, lower die includes lower mould body and low punch, low punch is embedded in lower mould body, and the first slot is set between upper end and lower mould body, runner is provided in low punch, the upper end of low punch is stretched out in runner upper end, and lower end can be connect with highly pressurised liquid liquid feed device；Upper mold includes upper die plate, upper mold body, gas spring and upper punch, the upper end of upper punch is connect with upper die plate, lower end is embedded in upper mold body, and the second slot is set between lower end and upper mold body, the upper end of gas spring is connect with upper die plate, lower end is free end, and it is vertical extended downwards, during upper mold body pushes, gas spring can compress guarantee upper mold body and lower mould body regardless of from, molding good reliability is improved, the structure of a multi-cavity mold can also be arranged to, improves shaping efficiency.
Description
Technical field
The utility model relates to forging and forming technical field more particularly to a kind of expanding dies.
Background technique
Mold is the tool for formed article, and this tool is made of various parts, it mainly passes through molded material material
The processing of article shape is realized in the change of physical state, usually using in the industry, for injection molding, blow molding, extrusion, die casting or
The methods of forging and forming, smelting, punching press, stretching obtain the various moulds and tool of required product, and there are many mold type, according to adding
Work object and processing technology can be divided into: process the mold of metal, the mold of machining of non-metallic and powder metallurgy, by a molding material
The difference of material, mold can be divided into hardware dies, plastic mould and its special dies, and according to design feature, mold can be divided into again
The blanking die of plane and swaging die with space.
So-called bulging is to force blank thickness to be thinned under the action of mold and increase with surface area, to obtain part geometry
The processing method for stamping of shape, bulging process is different from deep-drawing technique, and the plastically deforming area of blank is confined within the scope of deformed area,
Material is not shifted to outside deformed area, is not also externally entering deformed area, is to lean on the part of blank thinning to realize.
During producing automobile main reducer spacer, due to the bulging die of the raw production spacer of current Some Domestic producer
Lamps structure is complicated, technique is cumbersome, die life is low, inconvenience is fixedly mounted in mold in forming process, easily causes dislocation, and mostly one
One chamber of mould, therefore product disqualification rate is higher, high production cost.
Utility model content
The purpose of this utility model is to provide a kind of expanding die, the expanding die structure is simple, convenient disassembly, and
Fixed reliable in forming process, the product qualification rate produced is high.
To achieve the above object, following technical scheme is provided,
Expanding die provided by the utility model, including,
Lower die, the lower die include lower mould body and low punch, and the lower die further includes lower mold backing plate, the lower mould body
It is connect with the lower mold backing plate, the low punch is embedded in the lower mould body, and is arranged between upper end and lower mould body
First slot is provided with channel in the low punch, and the upper end of the low punch is stretched out in the one end of the channel, and the other end can
It is connect with liquid feed device；
Upper mold, the upper mold include upper die plate, upper mold body, gas spring and upper punch, the upper end of the upper punch with
The upper die plate connection, lower end is embedded in the upper mold body, and the second slot is arranged between lower end and upper mold body, institute
The upper end for stating gas spring is connect with the upper die plate, and lower end is free end, and is extended vertically to the direction of the upper mold body
Setting, during the upper mold body pushes, the gas spring, which can be compressed, guarantees the upper mold body and lower mould body not
Separation.
Further, the expanding die includes multiple upper punch and the low punch matched, further includes more
A gas spring.
Further, the gas spring uses nitrogen gas spring.
Further, the expanding die further includes the spring base being used in combination with the gas spring, the gas spring
It is mounted in the spring base, the upper end of the spring base is connect with the upper die plate.
Further, the expanding die further includes upper punch fixed block, the upper end of the upper punch fixed block with it is described
Upper die plate connection, lower end is connect with the upper punch.
Further, the expanding die further includes upper mold bucket and lower die bucket, upper mold bucket upper end and the upper die-cushion
Plate connection, lower end are extended straight down, and lower end is shorter than the lower end of the upper mold body, the upper mold bucket and the upper mold
Ontology clearance fit；
The channel run through the lower mold backing plate, the structure of the lower die bucket and with the lower mold backing plate and the lower calligraphy or painting model
The connection of body and/or fit system are identical as the upper mold bucket, and the upper mold bucket and the lower die bucket play the role of positioning.
Further, the upper mold bucket and the upper mold body, the fit clearance of the lower die bucket and the lower mould body
It is identical and be 0.01-0.02mm.
Further, the expanding die further includes lower die cushion block, the lower end of the lower die cushion block and the lower mold backing plate
Connection, upper end are connect with the lower mould body, and runner, the lower end company of the runner and the channel are arranged in the lower die cushion block
It is logical, and can be connect with liquid feed device.
Further, the outside of the upper mold body is boss-shaped, and the lower end of the upper mold bucket is connected with upper mold baffle, institute
Upper mold baffle plate setting is stated below the boss of the upper mold body, can prevent the upper mold body from falling.
Further, the outside of the lower mould body be with the symmetrical boss-shaped of the upper mold body, the lower die bucket
Upper end is connected with lower die baffle plate, and the lower die baffle plate is arranged in above the boss of the lower mould body, can prevent the lower die
Ontology moves up.
Further, 1 ° of -2 ° of Mi Kou is in the type accent portion between the upper mold body and lower mould body.
Pipe fitting when in use, is inserted into the first slot on lower mould body first by expanding die provided by the utility model,
Then external driving mechanism driving upper mold integrally moves downward, and the upper end of pipe fitting is inserted into when upper mold body and lower die body cap close
The second slot in upper mold body leads to full highly pressurised liquid in runner, and driving mechanism continues that upper die plate is driven to move downward, at this time
Upper mold body descends mould body stationary relatively, and gas spring is compressed between upper die plate and upper mold body, and pipe fitting is in Shang Chong
Type between head and low punch is intracavitary to be pressed molding, which gives lower mould body downward pressure,
It ensure that dislocation and movement will not occur for lower mould body.
Compared with prior art, expanding die provided by the utility model introduces gas spring structure, so that forming
Guarantee that upper mold body will not move in journey, multiple phases up and down can also be arranged in ratio of briquetting height, good reliability, the utility model
The upper punch and low punch of corresponding matching form the structure of a multi-cavity mold, improve shaping efficiency, and type chamber also can be made a variety of shapes
Shape, using flexible can also carry out the preparation of different product with low punch in dismounting and change.Bulging provided by the utility model
Mould structure is simple, convenient disassembly, forms good reliability, and long service life reduces production process, improves production efficiency
Height reduces cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the expanding die in the utility model embodiment one.
Appended drawing reference: 1- lower mold backing plate；2- lower die bucket；3- lower die cushion block；4- low punch；5- lower die baffle plate；Calligraphy or painting model under 6-
Body；7- type chamber；8- upper punch；9- upper mold baffle；10- upper mold body；11- upper punch fixed block；12- upper mold bucket；13- gas bullet
Spring；14- spring base；15- upper die plate；16- runner；The channel 17-.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, expanding die provided by the utility model includes lower die and upper mold, lower die include lower mold backing plate 1, under
Die-cushion block 3, lower mould body 6 and low punch 4, specifically, 3 lower thread of lower die cushion block are connected to 1 upper end of lower mold backing plate, lower calligraphy or painting model
Body 6 is threaded in 3 upper end of lower die cushion block, and runner 16 is provided in lower die cushion block 3, and the lower end of runner 16 and highly pressurised liquid are supplied
Device connection, low punch 4 is embedded in lower mould body 6, and the first slot is arranged between upper end and lower mould body 6, can be incited somebody to action
Pipe fitting is inserted into the first slot fixed placement；The center of low punch 4 offers channel 17, channel in the axial direction, through low punch 4
17 lower end is connected to runner 16, and the diameter in channel 17 is less than the diameter of runner 16, guarantees that highly pressurised liquid will not be revealed.Increase by one
A lower die cushion block 3 provides space for runner 16 and increases the intensity of entire lower 6 structure of mould body.
Upper mold includes upper die plate 15, upper mold body 10, gas spring 13, upper punch 8 and upper punch fixed block 11, specifically
The upper end on ground, upper punch fixed block 11 is threadedly coupled with upper die plate 15, and lower end is embedded in upper mold body 10 and is embedded in upper calligraphy or painting model
Upper punch 8 in body 10 is threadedly coupled, and had both been increased the distance between upper die plate 15 and upper mold body 10 in this way, and had been in turn ensured
Bonding strength between the two；Second slot is set between the lower end and upper mold body 10 of upper punch 8, it can be by the upper of pipe fitting
End the second slot of insertion is fixed.Gas spring 13 uses nitrogen gas spring, because nitrogen gas spring is using high pressure nitrogen as working media
Novel elastic component, it is small in size, elastic force is big, stroke is long, stable working, and manufacture is accurate, easily realizes pressure in systems
Power is constant and deferred action.Expanding die further includes the spring base 14 being used in combination with nitrogen gas spring, and spring base 14 is mounted on
On upper die plate 15, play the role of support and positioning to nitrogen gas spring；Nitrogen gas spring is mounted in spring base 14, nitrogen gas spring
Upper end be threadedly coupled with upper die plate 15, lower end is free end, and is extended vertically to the direction of upper mold body 10, natural
Under state, what the lower end of nitrogen gas spring was pushed with the upper end face contact of upper mold body 10 but without interaction force, upper mold body 10
In the process, nitrogen gas spring, which can compress, guarantees that upper mold body 10 and lower mould body 6 do not separate, to improve molding reliability.
Certainly in the case where that can reach requirement, gas spring 13 also can choose air spring or other inert gas springs, no
Being limited to nitrogen gas spring, this is a kind of.
Further, in the present embodiment, it further includes more that expanding die, which includes multiple upper punch 8 and low punch 4 matched,
A nitrogen gas spring forms the structure of a multi-cavity mold, improves shaping efficiency, and type chamber 7 also can be made various shapes, use spirit
It is living, the preparation of different product can also be carried out with low punch 4 in dismounting and change.
Further, in the present embodiment, expanding die further includes upper mold bucket 12 and lower die bucket 2,12 upper end of upper mold bucket with
Upper die plate 15 connects, and lower end is extended straight down, and lower end is shorter than the lower end of upper mold body 10, upper mold bucket 12 with it is upper
10 clearance fit of mould body, fit clearance 0.01-0.02mm can be 0.01mm, 0.02mm or 0.15mm, the present embodiment
Middle fit clearance is set as 0.15mm；The structure of lower die bucket 2 and connection and/or cooperation with lower mold backing plate 1 and lower mould body 6
Mode is identical as upper mold bucket 12, and upper mold bucket 12 and lower die bucket 2 play the role of positioning.Further, upper mold body 10 is outer
Side is boss-shaped, and the lower end of upper mold bucket 12 is connected with upper mold baffle 9, upper mold baffle 9 be arranged in upper mold body 10 boss be under
Side, can prevent upper mold body 10 from falling.Likewise, the outside of lower mould body 6 be with the symmetrical boss-shaped of upper mold body 10, under
The upper end of mould bucket 2 is connected with lower die baffle plate 5, and the boss that lower mould body 6 is arranged in lower die baffle plate 5 is top, can prevent lower die
Ontology 6 moves up, and up-down structure is symmetrical, both artistic and practical.It is of course also possible to be not provided with that the present embodiment enumerated up and down
Upper and lower mould body 6 can directly connect with the positioning mechanism in equipment, as long as positioning action can be played, be not limited to by mould bucket 2
This.
Further, 7 oral area of type chamber between upper mold body 10 and lower mould body 6 is 1 ° of -2 ° of Mi Kou, can prevent in this way
Molding product generates overlap.
Pipe fitting when in use, is inserted into the first slot on lower mould body 6 first by expanding die provided by the utility model,
Then external driving mechanism driving upper mold integrally moves downward, the upper end of pipe fitting when upper mold body 10 and lower mould body 6 lid close
The second slot being inserted into upper mold body 10, leads to full highly pressurised liquid in runner 16, driving mechanism continue to drive upper die plate 15 to
Lower movement, upper mold body 10 descends mould body 6 stationary relatively at this time, nitrogen gas spring upper die plate 15 and upper mold body 10 it
Between compressed, pipe fitting is pressed molding in the type chamber 7 between upper punch 8 and low punch 4, and the process nitrogen gas spring is anti-always
The pressure downward to lower mould body 6 is acted on, ensure that dislocation and movement will not occur for lower mould body 6.
Compared with prior art, expanding die provided by the utility model introduces nitrogen gas spring structure, so that forming
Guarantee that upper mold body 10 will not move in the process, ratio of briquetting height, good reliability, the utility model can also be arranged on multiple
Under corresponding cooperation upper punch 8 and low punch 4, form the structure of a multi-cavity mold, improve shaping efficiency, type chamber 7 can also be done
At various shapes, using flexible can also carry out the preparation of different product with low punch 4 in dismounting and change.The utility model mentions
The expanding die structure of confession is simple, convenient disassembly, forms good reliability, and long service life reduces production process, improves life
It produces high-efficient, reduces cost.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (10)
1. a kind of expanding die, which is characterized in that including,
Lower die, the lower die include lower mould body (6) and low punch (4), and the lower die further includes lower mold backing plate (1), under described
Mould body (6) is connect with the lower mold backing plate (1), and the low punch (4) is embedded in the lower mould body (6), and upper end
First slot is set between lower mould body (6), is provided with channel (17) in the low punch (4), described channel (17) one end
The upper end of the low punch (4) is stretched out, the other end can be connect with liquid feed device；
Upper mold, the upper mold include upper die plate (15), upper mold body (10), gas spring (13) and upper punch (8), the upper punching
The upper end of head (8) is connect with the upper die plate (15), and lower end is embedded in the upper mold body (10), and lower end and upper calligraphy or painting model
Second slot is set between body (10), and the upper end of the gas spring (13) is connect with the upper die plate (15), and lower end is freely
End, and be extended vertically to the direction of the upper mold body (10), during the upper mold body (10) pushes, the gas
Spring (13), which can compress, guarantees that the upper mold body (10) and lower mould body (6) do not separate.
2. expanding die according to claim 1, which is characterized in that the expanding die include it is multiple match it is described
Upper punch (8) and the low punch (4) further include multiple gas springs (13).
3. expanding die according to claim 1, which is characterized in that the gas spring (13) uses nitrogen gas spring.
4. expanding die according to claim 1, which is characterized in that the expanding die further includes and the gas spring
(13) spring base (14) being used in combination, the gas spring (13) are mounted in the spring base (14), the spring base
(14) upper end is connect with the upper die plate (15).
5. expanding die according to claim 4, which is characterized in that the expanding die further includes upper punch fixed block
(11), the upper end of the upper punch fixed block (11) is connect with the upper die plate (15), and lower end and the upper punch (8) are even
It connects.
6. expanding die according to claim 1, which is characterized in that the expanding die further include upper mold bucket (12) and under
Mould bucket (2), upper mold bucket (12) upper end are connect with the upper die plate (15), and lower end is extended straight down, and lower end
The lower end of the shorter than described upper mold body (10), the upper mold bucket (12) and the upper mold body (10) clearance fit；
The channel (17) run through the lower mold backing plate (1), the structure of the lower die bucket (2) and with the lower mold backing plate (1) and
The connection of the lower mould body (6) and/or fit system are identical as upper mold bucket (12), the upper mold bucket (12) and described
Lower die bucket (2) plays the role of positioning.
7. expanding die according to claim 6, which is characterized in that the upper mold bucket (12) and the upper mold body
(10), the lower die bucket (2) is identical as the fit clearance of the lower mould body (6) and is 0.01-0.02mm.
8. expanding die according to claim 6, which is characterized in that the expanding die further includes lower die cushion block (3), institute
The lower end for stating lower die cushion block (3) is connect with the lower mold backing plate (1), and upper end is connect with the lower mould body (6), the lower die-cushion
Runner (16) are set in block (3), the runner (16) is connected to the lower end of the channel (17), and can connect with liquid feed device
It connects.
9. expanding die according to claim 6, which is characterized in that the outside of the upper mold body (10) is boss-shaped,
The lower end of the upper mold bucket (12) is connected with upper mold baffle (9), and the upper mold baffle (9) is arranged in the upper mold body (10)
Below boss, it can prevent the upper mold body (10) from falling；
The outside of the lower mould body (6) is and the upper mold body (10) symmetrical boss-shaped, the upper end of the lower die bucket (2)
It is connected with lower die baffle plate (5), the lower die baffle plate (5) is arranged above the boss of the lower mould body (6), can prevent described
Lower mould body (6) moves up.
10. -9 described in any item expanding dies according to claim 1, which is characterized in that the upper mold body (10) and under
Type chamber (7) oral area between mould body (6) is 1 ° of -2 ° of Mi Kou.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820074522.XU CN208276007U (en) | 2018-01-17 | 2018-01-17 | Expanding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820074522.XU CN208276007U (en) | 2018-01-17 | 2018-01-17 | Expanding die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208276007U true CN208276007U (en) | 2018-12-25 |
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ID=64747842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820074522.XU Active CN208276007U (en) | 2018-01-17 | 2018-01-17 | Expanding die |
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| Country | Link |
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| CN (1) | CN208276007U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110000266A (en) * | 2019-04-15 | 2019-07-12 | 苏州亨允晟机电科技有限公司 | A kind of multi-channel hydraulic molding die |
| CN114101488A (en) * | 2021-11-10 | 2022-03-01 | 中国航发南方工业有限公司 | Down-pressing convex rib liquid-filling bulging device |
-
2018
- 2018-01-17 CN CN201820074522.XU patent/CN208276007U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110000266A (en) * | 2019-04-15 | 2019-07-12 | 苏州亨允晟机电科技有限公司 | A kind of multi-channel hydraulic molding die |
| CN114101488A (en) * | 2021-11-10 | 2022-03-01 | 中国航发南方工业有限公司 | Down-pressing convex rib liquid-filling bulging device |
| CN114101488B (en) * | 2021-11-10 | 2023-04-11 | 中国航发南方工业有限公司 | Down-pressing convex rib liquid-filling bulging device |
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